Answer:
The flower colour ratio obtained is: Blue : Purple = 3 : 1.
Explanation:
- According to the question,
- the genotype, AABB or AaBb or AABb or AaBB gives blue phenotype.
- the genotype, AAbb or aaBB or Aabb or aaBb gives purple phenotype.
- Red phenotype is for the aabb genotype.
- As only the presence of dominant allele is mentioned but whether it is homozygous or heterozygous is not mentioned, in 1. we consider that presence of a single dominant allele A or B in either locus is capable of showing a blue phenotype, irrespective of the nature of the other allele.
- In 2. we consider that the presence of a single dominant allele, A or B in one locus with recessive pairs of alleles in the other locus is sufficient to develop the purple phenotype.
- The aaBb individual will produce the gametes: aB, ab.
- The AABb individual will produce the gametes: AB, Ab.
- Crossing them,
aB ab
AB AaBB AaBb
(Blue) (Blue)
Ab AaBb Aabb
(Blue) (Purple)
- Of the offspring obtained, 3 have blue phenotype and 1 has purple phenotype.
- Hence, they have the following phenotypic ratio:
Blue : Purple = 3 : 1.
Answer: Carbon is one of the essential gases in nature,couple of natural processes causes the release of carbon. Some of the processes include;
- When the remains of producers are broken down by decomposers in the ecosystem.
- When animals break down food molecules to obtain energy, carbon is released.
- When the remains of consumers in the ecosystem are broken down by soil decomposers, carbon is released.
The correct answer is: D. Alcohol fermentation
Alcohol fermentation is a form of anaerobic where the simple sugars such as glucose or fructose are converted into energy (ATP) and the products of this reaction are ethanol and carbon dioxide. Alcohol mechanism is performed by yeast and some fishes. This is a mechanism used for the production of alcoholic beverages.
A) A flap in the heart located between each atrium and ventricle.
Hope it helps! :)
Answer:
Lipids
Explanation:
Vesicles and all membranes have a lipid bilayer. Which, simply put, means 2 layers of lipid molecules. Hope this helps!!
